1f62c4786SHajimu UMEMOTO /* 2f62c4786SHajimu UMEMOTO * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC") 3f62c4786SHajimu UMEMOTO * Copyright (c) 1996-1999 by Internet Software Consortium. 4f62c4786SHajimu UMEMOTO * 5f62c4786SHajimu UMEMOTO * Permission to use, copy, modify, and distribute this software for any 6f62c4786SHajimu UMEMOTO * purpose with or without fee is hereby granted, provided that the above 7f62c4786SHajimu UMEMOTO * copyright notice and this permission notice appear in all copies. 8f62c4786SHajimu UMEMOTO * 9f62c4786SHajimu UMEMOTO * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES 10f62c4786SHajimu UMEMOTO * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11f62c4786SHajimu UMEMOTO * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR 12f62c4786SHajimu UMEMOTO * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13f62c4786SHajimu UMEMOTO * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14f62c4786SHajimu UMEMOTO * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 15f62c4786SHajimu UMEMOTO * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16f62c4786SHajimu UMEMOTO */ 17f62c4786SHajimu UMEMOTO 18f62c4786SHajimu UMEMOTO /* 19f62c4786SHajimu UMEMOTO * Based on the Dynamic DNS reference implementation by Viraj Bais 20f62c4786SHajimu UMEMOTO * <viraj_bais@ccm.fm.intel.com> 21f62c4786SHajimu UMEMOTO */ 22f62c4786SHajimu UMEMOTO 23f62c4786SHajimu UMEMOTO #if !defined(lint) && !defined(SABER) 24f62c4786SHajimu UMEMOTO static const char rcsid[] = "$Id: res_mkupdate.c,v 1.1.2.1.4.5 2005/10/14 05:43:47 marka Exp $"; 25f62c4786SHajimu UMEMOTO #endif /* not lint */ 26f62c4786SHajimu UMEMOTO 27f62c4786SHajimu UMEMOTO #include "port_before.h" 28f62c4786SHajimu UMEMOTO 29f62c4786SHajimu UMEMOTO #include <sys/types.h> 30f62c4786SHajimu UMEMOTO #include <sys/param.h> 31f62c4786SHajimu UMEMOTO 32f62c4786SHajimu UMEMOTO #include <netinet/in.h> 33f62c4786SHajimu UMEMOTO #include <arpa/nameser.h> 34f62c4786SHajimu UMEMOTO #include <arpa/inet.h> 35f62c4786SHajimu UMEMOTO 36f62c4786SHajimu UMEMOTO #include <errno.h> 37f62c4786SHajimu UMEMOTO #include <limits.h> 38f62c4786SHajimu UMEMOTO #include <netdb.h> 39f62c4786SHajimu UMEMOTO #include <resolv.h> 40f62c4786SHajimu UMEMOTO #include <res_update.h> 41f62c4786SHajimu UMEMOTO #include <stdio.h> 42f62c4786SHajimu UMEMOTO #include <stdlib.h> 43f62c4786SHajimu UMEMOTO #include <string.h> 44f62c4786SHajimu UMEMOTO #include <unistd.h> 45f62c4786SHajimu UMEMOTO #include <ctype.h> 46f62c4786SHajimu UMEMOTO 47f62c4786SHajimu UMEMOTO #include "port_after.h" 48f62c4786SHajimu UMEMOTO 49f62c4786SHajimu UMEMOTO /* Options. Leave them on. */ 50f62c4786SHajimu UMEMOTO #define DEBUG 51f62c4786SHajimu UMEMOTO #define MAXPORT 1024 52f62c4786SHajimu UMEMOTO 53f62c4786SHajimu UMEMOTO static int getnum_str(u_char **, u_char *); 54f62c4786SHajimu UMEMOTO static int gethexnum_str(u_char **, u_char *); 55f62c4786SHajimu UMEMOTO static int getword_str(char *, int, u_char **, u_char *); 56f62c4786SHajimu UMEMOTO static int getstr_str(char *, int, u_char **, u_char *); 57f62c4786SHajimu UMEMOTO 58f62c4786SHajimu UMEMOTO #define ShrinkBuffer(x) if ((buflen -= x) < 0) return (-2); 59f62c4786SHajimu UMEMOTO 60f62c4786SHajimu UMEMOTO /* Forward. */ 61f62c4786SHajimu UMEMOTO 62f62c4786SHajimu UMEMOTO int res_protocolnumber(const char *); 63f62c4786SHajimu UMEMOTO int res_servicenumber(const char *); 64f62c4786SHajimu UMEMOTO 65f62c4786SHajimu UMEMOTO /* 66f62c4786SHajimu UMEMOTO * Form update packets. 67f62c4786SHajimu UMEMOTO * Returns the size of the resulting packet if no error 68f62c4786SHajimu UMEMOTO * On error, 69f62c4786SHajimu UMEMOTO * returns -1 if error in reading a word/number in rdata 70f62c4786SHajimu UMEMOTO * portion for update packets 71f62c4786SHajimu UMEMOTO * -2 if length of buffer passed is insufficient 72f62c4786SHajimu UMEMOTO * -3 if zone section is not the first section in 73f62c4786SHajimu UMEMOTO * the linked list, or section order has a problem 74f62c4786SHajimu UMEMOTO * -4 on a number overflow 75f62c4786SHajimu UMEMOTO * -5 unknown operation or no records 76f62c4786SHajimu UMEMOTO */ 77f62c4786SHajimu UMEMOTO int 78f62c4786SHajimu UMEMOTO res_nmkupdate(res_state statp, ns_updrec *rrecp_in, u_char *buf, int buflen) { 79f62c4786SHajimu UMEMOTO ns_updrec *rrecp_start = rrecp_in; 80f62c4786SHajimu UMEMOTO HEADER *hp; 81f62c4786SHajimu UMEMOTO u_char *cp, *sp2, *startp, *endp; 82f62c4786SHajimu UMEMOTO int n, i, soanum, multiline; 83f62c4786SHajimu UMEMOTO ns_updrec *rrecp; 84f62c4786SHajimu UMEMOTO struct in_addr ina; 85f62c4786SHajimu UMEMOTO struct in6_addr in6a; 86f62c4786SHajimu UMEMOTO char buf2[MAXDNAME]; 87f62c4786SHajimu UMEMOTO u_char buf3[MAXDNAME]; 88f62c4786SHajimu UMEMOTO int section, numrrs = 0, counts[ns_s_max]; 89f62c4786SHajimu UMEMOTO u_int16_t rtype, rclass; 90f62c4786SHajimu UMEMOTO u_int32_t n1, rttl; 91f62c4786SHajimu UMEMOTO u_char *dnptrs[20], **dpp, **lastdnptr; 92f62c4786SHajimu UMEMOTO int siglen, keylen, certlen; 93f62c4786SHajimu UMEMOTO 94f62c4786SHajimu UMEMOTO /* 95f62c4786SHajimu UMEMOTO * Initialize header fields. 96f62c4786SHajimu UMEMOTO */ 97f62c4786SHajimu UMEMOTO if ((buf == NULL) || (buflen < HFIXEDSZ)) 98f62c4786SHajimu UMEMOTO return (-1); 99f62c4786SHajimu UMEMOTO memset(buf, 0, HFIXEDSZ); 100f62c4786SHajimu UMEMOTO hp = (HEADER *) buf; 101f62c4786SHajimu UMEMOTO hp->id = htons(++statp->id); 102f62c4786SHajimu UMEMOTO hp->opcode = ns_o_update; 103f62c4786SHajimu UMEMOTO hp->rcode = NOERROR; 104f62c4786SHajimu UMEMOTO cp = buf + HFIXEDSZ; 105f62c4786SHajimu UMEMOTO buflen -= HFIXEDSZ; 106f62c4786SHajimu UMEMOTO dpp = dnptrs; 107f62c4786SHajimu UMEMOTO *dpp++ = buf; 108f62c4786SHajimu UMEMOTO *dpp++ = NULL; 109f62c4786SHajimu UMEMOTO lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0]; 110f62c4786SHajimu UMEMOTO 111f62c4786SHajimu UMEMOTO if (rrecp_start == NULL) 112f62c4786SHajimu UMEMOTO return (-5); 113f62c4786SHajimu UMEMOTO else if (rrecp_start->r_section != S_ZONE) 114f62c4786SHajimu UMEMOTO return (-3); 115f62c4786SHajimu UMEMOTO 116f62c4786SHajimu UMEMOTO memset(counts, 0, sizeof counts); 117f62c4786SHajimu UMEMOTO for (rrecp = rrecp_start; rrecp; rrecp = NEXT(rrecp, r_glink)) { 118f62c4786SHajimu UMEMOTO numrrs++; 119f62c4786SHajimu UMEMOTO section = rrecp->r_section; 120f62c4786SHajimu UMEMOTO if (section < 0 || section >= ns_s_max) 121f62c4786SHajimu UMEMOTO return (-1); 122f62c4786SHajimu UMEMOTO counts[section]++; 123f62c4786SHajimu UMEMOTO for (i = section + 1; i < ns_s_max; i++) 124f62c4786SHajimu UMEMOTO if (counts[i]) 125f62c4786SHajimu UMEMOTO return (-3); 126f62c4786SHajimu UMEMOTO rtype = rrecp->r_type; 127f62c4786SHajimu UMEMOTO rclass = rrecp->r_class; 128f62c4786SHajimu UMEMOTO rttl = rrecp->r_ttl; 129f62c4786SHajimu UMEMOTO /* overload class and type */ 130f62c4786SHajimu UMEMOTO if (section == S_PREREQ) { 131f62c4786SHajimu UMEMOTO rttl = 0; 132f62c4786SHajimu UMEMOTO switch (rrecp->r_opcode) { 133f62c4786SHajimu UMEMOTO case YXDOMAIN: 134f62c4786SHajimu UMEMOTO rclass = C_ANY; 135f62c4786SHajimu UMEMOTO rtype = T_ANY; 136f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 137f62c4786SHajimu UMEMOTO break; 138f62c4786SHajimu UMEMOTO case NXDOMAIN: 139f62c4786SHajimu UMEMOTO rclass = C_NONE; 140f62c4786SHajimu UMEMOTO rtype = T_ANY; 141f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 142f62c4786SHajimu UMEMOTO break; 143f62c4786SHajimu UMEMOTO case NXRRSET: 144f62c4786SHajimu UMEMOTO rclass = C_NONE; 145f62c4786SHajimu UMEMOTO rrecp->r_size = 0; 146f62c4786SHajimu UMEMOTO break; 147f62c4786SHajimu UMEMOTO case YXRRSET: 148f62c4786SHajimu UMEMOTO if (rrecp->r_size == 0) 149f62c4786SHajimu UMEMOTO rclass = C_ANY; 150f62c4786SHajimu UMEMOTO break; 151f62c4786SHajimu UMEMOTO default: 152f62c4786SHajimu UMEMOTO fprintf(stderr, 153f62c4786SHajimu UMEMOTO "res_mkupdate: incorrect opcode: %d\n", 154f62c4786SHajimu UMEMOTO rrecp->r_opcode); 155f62c4786SHajimu UMEMOTO fflush(stderr); 156f62c4786SHajimu UMEMOTO return (-1); 157f62c4786SHajimu UMEMOTO } 158f62c4786SHajimu UMEMOTO } else if (section == S_UPDATE) { 159f62c4786SHajimu UMEMOTO switch (rrecp->r_opcode) { 160f62c4786SHajimu UMEMOTO case DELETE: 161f62c4786SHajimu UMEMOTO rclass = rrecp->r_size == 0 ? C_ANY : C_NONE; 162f62c4786SHajimu UMEMOTO break; 163f62c4786SHajimu UMEMOTO case ADD: 164f62c4786SHajimu UMEMOTO break; 165f62c4786SHajimu UMEMOTO default: 166f62c4786SHajimu UMEMOTO fprintf(stderr, 167f62c4786SHajimu UMEMOTO "res_mkupdate: incorrect opcode: %d\n", 168f62c4786SHajimu UMEMOTO rrecp->r_opcode); 169f62c4786SHajimu UMEMOTO fflush(stderr); 170f62c4786SHajimu UMEMOTO return (-1); 171f62c4786SHajimu UMEMOTO } 172f62c4786SHajimu UMEMOTO } 173f62c4786SHajimu UMEMOTO 174f62c4786SHajimu UMEMOTO /* 175f62c4786SHajimu UMEMOTO * XXX appending default domain to owner name is omitted, 176f62c4786SHajimu UMEMOTO * fqdn must be provided 177f62c4786SHajimu UMEMOTO */ 178f62c4786SHajimu UMEMOTO if ((n = dn_comp(rrecp->r_dname, cp, buflen, dnptrs, 179f62c4786SHajimu UMEMOTO lastdnptr)) < 0) 180f62c4786SHajimu UMEMOTO return (-1); 181f62c4786SHajimu UMEMOTO cp += n; 182f62c4786SHajimu UMEMOTO ShrinkBuffer(n + 2*INT16SZ); 183f62c4786SHajimu UMEMOTO PUTSHORT(rtype, cp); 184f62c4786SHajimu UMEMOTO PUTSHORT(rclass, cp); 185f62c4786SHajimu UMEMOTO if (section == S_ZONE) { 186f62c4786SHajimu UMEMOTO if (numrrs != 1 || rrecp->r_type != T_SOA) 187f62c4786SHajimu UMEMOTO return (-3); 188f62c4786SHajimu UMEMOTO continue; 189f62c4786SHajimu UMEMOTO } 190f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ + INT16SZ); 191f62c4786SHajimu UMEMOTO PUTLONG(rttl, cp); 192f62c4786SHajimu UMEMOTO sp2 = cp; /* save pointer to length byte */ 193f62c4786SHajimu UMEMOTO cp += INT16SZ; 194f62c4786SHajimu UMEMOTO if (rrecp->r_size == 0) { 195f62c4786SHajimu UMEMOTO if (section == S_UPDATE && rclass != C_ANY) 196f62c4786SHajimu UMEMOTO return (-1); 197f62c4786SHajimu UMEMOTO else { 198f62c4786SHajimu UMEMOTO PUTSHORT(0, sp2); 199f62c4786SHajimu UMEMOTO continue; 200f62c4786SHajimu UMEMOTO } 201f62c4786SHajimu UMEMOTO } 202f62c4786SHajimu UMEMOTO startp = rrecp->r_data; 203f62c4786SHajimu UMEMOTO endp = startp + rrecp->r_size - 1; 204f62c4786SHajimu UMEMOTO /* XXX this should be done centrally. */ 205f62c4786SHajimu UMEMOTO switch (rrecp->r_type) { 206f62c4786SHajimu UMEMOTO case T_A: 207f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 208f62c4786SHajimu UMEMOTO return (-1); 209f62c4786SHajimu UMEMOTO if (!inet_aton(buf2, &ina)) 210f62c4786SHajimu UMEMOTO return (-1); 211f62c4786SHajimu UMEMOTO n1 = ntohl(ina.s_addr); 212f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 213f62c4786SHajimu UMEMOTO PUTLONG(n1, cp); 214f62c4786SHajimu UMEMOTO break; 215f62c4786SHajimu UMEMOTO case T_CNAME: 216f62c4786SHajimu UMEMOTO case T_MB: 217f62c4786SHajimu UMEMOTO case T_MG: 218f62c4786SHajimu UMEMOTO case T_MR: 219f62c4786SHajimu UMEMOTO case T_NS: 220f62c4786SHajimu UMEMOTO case T_PTR: 221f62c4786SHajimu UMEMOTO case ns_t_dname: 222f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 223f62c4786SHajimu UMEMOTO return (-1); 224f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 225f62c4786SHajimu UMEMOTO if (n < 0) 226f62c4786SHajimu UMEMOTO return (-1); 227f62c4786SHajimu UMEMOTO cp += n; 228f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 229f62c4786SHajimu UMEMOTO break; 230f62c4786SHajimu UMEMOTO case T_MINFO: 231f62c4786SHajimu UMEMOTO case T_SOA: 232f62c4786SHajimu UMEMOTO case T_RP: 233f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 234f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 235f62c4786SHajimu UMEMOTO endp)) 236f62c4786SHajimu UMEMOTO return (-1); 237f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, 238f62c4786SHajimu UMEMOTO dnptrs, lastdnptr); 239f62c4786SHajimu UMEMOTO if (n < 0) 240f62c4786SHajimu UMEMOTO return (-1); 241f62c4786SHajimu UMEMOTO cp += n; 242f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 243f62c4786SHajimu UMEMOTO } 244f62c4786SHajimu UMEMOTO if (rrecp->r_type == T_SOA) { 245f62c4786SHajimu UMEMOTO ShrinkBuffer(5 * INT32SZ); 246f62c4786SHajimu UMEMOTO while (isspace(*startp) || !*startp) 247f62c4786SHajimu UMEMOTO startp++; 248f62c4786SHajimu UMEMOTO if (*startp == '(') { 249f62c4786SHajimu UMEMOTO multiline = 1; 250f62c4786SHajimu UMEMOTO startp++; 251f62c4786SHajimu UMEMOTO } else 252f62c4786SHajimu UMEMOTO multiline = 0; 253f62c4786SHajimu UMEMOTO /* serial, refresh, retry, expire, minimum */ 254f62c4786SHajimu UMEMOTO for (i = 0; i < 5; i++) { 255f62c4786SHajimu UMEMOTO soanum = getnum_str(&startp, endp); 256f62c4786SHajimu UMEMOTO if (soanum < 0) 257f62c4786SHajimu UMEMOTO return (-1); 258f62c4786SHajimu UMEMOTO PUTLONG(soanum, cp); 259f62c4786SHajimu UMEMOTO } 260f62c4786SHajimu UMEMOTO if (multiline) { 261f62c4786SHajimu UMEMOTO while (isspace(*startp) || !*startp) 262f62c4786SHajimu UMEMOTO startp++; 263f62c4786SHajimu UMEMOTO if (*startp != ')') 264f62c4786SHajimu UMEMOTO return (-1); 265f62c4786SHajimu UMEMOTO } 266f62c4786SHajimu UMEMOTO } 267f62c4786SHajimu UMEMOTO break; 268f62c4786SHajimu UMEMOTO case T_MX: 269f62c4786SHajimu UMEMOTO case T_AFSDB: 270f62c4786SHajimu UMEMOTO case T_RT: 271f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 272f62c4786SHajimu UMEMOTO if (n < 0) 273f62c4786SHajimu UMEMOTO return (-1); 274f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 275f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 276f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 277f62c4786SHajimu UMEMOTO return (-1); 278f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 279f62c4786SHajimu UMEMOTO if (n < 0) 280f62c4786SHajimu UMEMOTO return (-1); 281f62c4786SHajimu UMEMOTO cp += n; 282f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 283f62c4786SHajimu UMEMOTO break; 284f62c4786SHajimu UMEMOTO case T_SRV: 285f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 286f62c4786SHajimu UMEMOTO if (n < 0) 287f62c4786SHajimu UMEMOTO return (-1); 288f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 289f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 290f62c4786SHajimu UMEMOTO 291f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 292f62c4786SHajimu UMEMOTO if (n < 0) 293f62c4786SHajimu UMEMOTO return (-1); 294f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 295f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 296f62c4786SHajimu UMEMOTO 297f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 298f62c4786SHajimu UMEMOTO if (n < 0) 299f62c4786SHajimu UMEMOTO return (-1); 300f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 301f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 302f62c4786SHajimu UMEMOTO 303f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 304f62c4786SHajimu UMEMOTO return (-1); 305f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 306f62c4786SHajimu UMEMOTO if (n < 0) 307f62c4786SHajimu UMEMOTO return (-1); 308f62c4786SHajimu UMEMOTO cp += n; 309f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 310f62c4786SHajimu UMEMOTO break; 311f62c4786SHajimu UMEMOTO case T_PX: 312f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 313f62c4786SHajimu UMEMOTO if (n < 0) 314f62c4786SHajimu UMEMOTO return (-1); 315f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 316f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 317f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 318f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 319f62c4786SHajimu UMEMOTO endp)) 320f62c4786SHajimu UMEMOTO return (-1); 321f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, 322f62c4786SHajimu UMEMOTO lastdnptr); 323f62c4786SHajimu UMEMOTO if (n < 0) 324f62c4786SHajimu UMEMOTO return (-1); 325f62c4786SHajimu UMEMOTO cp += n; 326f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 327f62c4786SHajimu UMEMOTO } 328f62c4786SHajimu UMEMOTO break; 329f62c4786SHajimu UMEMOTO case T_WKS: { 330f62c4786SHajimu UMEMOTO char bm[MAXPORT/8]; 331f62c4786SHajimu UMEMOTO unsigned int maxbm = 0; 332f62c4786SHajimu UMEMOTO 333f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 334f62c4786SHajimu UMEMOTO return (-1); 335f62c4786SHajimu UMEMOTO if (!inet_aton(buf2, &ina)) 336f62c4786SHajimu UMEMOTO return (-1); 337f62c4786SHajimu UMEMOTO n1 = ntohl(ina.s_addr); 338f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 339f62c4786SHajimu UMEMOTO PUTLONG(n1, cp); 340f62c4786SHajimu UMEMOTO 341f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 342f62c4786SHajimu UMEMOTO return (-1); 343f62c4786SHajimu UMEMOTO if ((i = res_protocolnumber(buf2)) < 0) 344f62c4786SHajimu UMEMOTO return (-1); 345f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 346f62c4786SHajimu UMEMOTO *cp++ = i & 0xff; 347f62c4786SHajimu UMEMOTO 348f62c4786SHajimu UMEMOTO for (i = 0; i < MAXPORT/8 ; i++) 349f62c4786SHajimu UMEMOTO bm[i] = 0; 350f62c4786SHajimu UMEMOTO 351f62c4786SHajimu UMEMOTO while (getword_str(buf2, sizeof buf2, &startp, endp)) { 352f62c4786SHajimu UMEMOTO if ((n = res_servicenumber(buf2)) <= 0) 353f62c4786SHajimu UMEMOTO return (-1); 354f62c4786SHajimu UMEMOTO 355f62c4786SHajimu UMEMOTO if (n < MAXPORT) { 356f62c4786SHajimu UMEMOTO bm[n/8] |= (0x80>>(n%8)); 357f62c4786SHajimu UMEMOTO if ((unsigned)n > maxbm) 358f62c4786SHajimu UMEMOTO maxbm = n; 359f62c4786SHajimu UMEMOTO } else 360f62c4786SHajimu UMEMOTO return (-1); 361f62c4786SHajimu UMEMOTO } 362f62c4786SHajimu UMEMOTO maxbm = maxbm/8 + 1; 363f62c4786SHajimu UMEMOTO ShrinkBuffer(maxbm); 364f62c4786SHajimu UMEMOTO memcpy(cp, bm, maxbm); 365f62c4786SHajimu UMEMOTO cp += maxbm; 366f62c4786SHajimu UMEMOTO break; 367f62c4786SHajimu UMEMOTO } 368f62c4786SHajimu UMEMOTO case T_HINFO: 369f62c4786SHajimu UMEMOTO for (i = 0; i < 2; i++) { 370f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 371f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 372f62c4786SHajimu UMEMOTO return (-1); 373f62c4786SHajimu UMEMOTO if (n > 255) 374f62c4786SHajimu UMEMOTO return (-1); 375f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 376f62c4786SHajimu UMEMOTO *cp++ = n; 377f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 378f62c4786SHajimu UMEMOTO cp += n; 379f62c4786SHajimu UMEMOTO } 380f62c4786SHajimu UMEMOTO break; 381f62c4786SHajimu UMEMOTO case T_TXT: 382f62c4786SHajimu UMEMOTO for (;;) { 383f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 384f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 385f62c4786SHajimu UMEMOTO if (cp != (sp2 + INT16SZ)) 386f62c4786SHajimu UMEMOTO break; 387f62c4786SHajimu UMEMOTO return (-1); 388f62c4786SHajimu UMEMOTO } 389f62c4786SHajimu UMEMOTO if (n > 255) 390f62c4786SHajimu UMEMOTO return (-1); 391f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 392f62c4786SHajimu UMEMOTO *cp++ = n; 393f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 394f62c4786SHajimu UMEMOTO cp += n; 395f62c4786SHajimu UMEMOTO } 396f62c4786SHajimu UMEMOTO break; 397f62c4786SHajimu UMEMOTO case T_X25: 398f62c4786SHajimu UMEMOTO /* RFC 1183 */ 399f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 400f62c4786SHajimu UMEMOTO endp)) < 0) 401f62c4786SHajimu UMEMOTO return (-1); 402f62c4786SHajimu UMEMOTO if (n > 255) 403f62c4786SHajimu UMEMOTO return (-1); 404f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 405f62c4786SHajimu UMEMOTO *cp++ = n; 406f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 407f62c4786SHajimu UMEMOTO cp += n; 408f62c4786SHajimu UMEMOTO break; 409f62c4786SHajimu UMEMOTO case T_ISDN: 410f62c4786SHajimu UMEMOTO /* RFC 1183 */ 411f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 412f62c4786SHajimu UMEMOTO endp)) < 0) 413f62c4786SHajimu UMEMOTO return (-1); 414f62c4786SHajimu UMEMOTO if ((n > 255) || (n == 0)) 415f62c4786SHajimu UMEMOTO return (-1); 416f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 417f62c4786SHajimu UMEMOTO *cp++ = n; 418f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 419f62c4786SHajimu UMEMOTO cp += n; 420f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, &startp, 421f62c4786SHajimu UMEMOTO endp)) < 0) 422f62c4786SHajimu UMEMOTO n = 0; 423f62c4786SHajimu UMEMOTO if (n > 255) 424f62c4786SHajimu UMEMOTO return (-1); 425f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 426f62c4786SHajimu UMEMOTO *cp++ = n; 427f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 428f62c4786SHajimu UMEMOTO cp += n; 429f62c4786SHajimu UMEMOTO break; 430f62c4786SHajimu UMEMOTO case T_NSAP: 431f62c4786SHajimu UMEMOTO if ((n = inet_nsap_addr((char *)startp, (u_char *)buf2, sizeof(buf2))) != 0) { 432f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 433f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 434f62c4786SHajimu UMEMOTO cp += n; 435f62c4786SHajimu UMEMOTO } else { 436f62c4786SHajimu UMEMOTO return (-1); 437f62c4786SHajimu UMEMOTO } 438f62c4786SHajimu UMEMOTO break; 439f62c4786SHajimu UMEMOTO case T_LOC: 440f62c4786SHajimu UMEMOTO if ((n = loc_aton((char *)startp, (u_char *)buf2)) != 0) { 441f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 442f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 443f62c4786SHajimu UMEMOTO cp += n; 444f62c4786SHajimu UMEMOTO } else 445f62c4786SHajimu UMEMOTO return (-1); 446f62c4786SHajimu UMEMOTO break; 447f62c4786SHajimu UMEMOTO case ns_t_sig: 448f62c4786SHajimu UMEMOTO { 449f62c4786SHajimu UMEMOTO int sig_type, success, dateerror; 450f62c4786SHajimu UMEMOTO u_int32_t exptime, timesigned; 451f62c4786SHajimu UMEMOTO 452f62c4786SHajimu UMEMOTO /* type */ 453f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 454f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 455f62c4786SHajimu UMEMOTO return (-1); 456f62c4786SHajimu UMEMOTO sig_type = sym_ston(__p_type_syms, buf2, &success); 457f62c4786SHajimu UMEMOTO if (!success || sig_type == ns_t_any) 458f62c4786SHajimu UMEMOTO return (-1); 459f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 460f62c4786SHajimu UMEMOTO PUTSHORT(sig_type, cp); 461f62c4786SHajimu UMEMOTO /* alg */ 462f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 463f62c4786SHajimu UMEMOTO if (n < 0) 464f62c4786SHajimu UMEMOTO return (-1); 465f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 466f62c4786SHajimu UMEMOTO *cp++ = n; 467f62c4786SHajimu UMEMOTO /* labels */ 468f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 469f62c4786SHajimu UMEMOTO if (n <= 0 || n > 255) 470f62c4786SHajimu UMEMOTO return (-1); 471f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 472f62c4786SHajimu UMEMOTO *cp++ = n; 473f62c4786SHajimu UMEMOTO /* ottl & expire */ 474f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 475f62c4786SHajimu UMEMOTO return (-1); 476f62c4786SHajimu UMEMOTO exptime = ns_datetosecs(buf2, &dateerror); 477f62c4786SHajimu UMEMOTO if (!dateerror) { 478f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 479f62c4786SHajimu UMEMOTO PUTLONG(rttl, cp); 480f62c4786SHajimu UMEMOTO } 481f62c4786SHajimu UMEMOTO else { 482f62c4786SHajimu UMEMOTO char *ulendp; 483f62c4786SHajimu UMEMOTO u_int32_t ottl; 484f62c4786SHajimu UMEMOTO 485f62c4786SHajimu UMEMOTO errno = 0; 486f62c4786SHajimu UMEMOTO ottl = strtoul(buf2, &ulendp, 10); 487f62c4786SHajimu UMEMOTO if (errno != 0 || 488f62c4786SHajimu UMEMOTO (ulendp != NULL && *ulendp != '\0')) 489f62c4786SHajimu UMEMOTO return (-1); 490f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 491f62c4786SHajimu UMEMOTO PUTLONG(ottl, cp); 492f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 493f62c4786SHajimu UMEMOTO endp)) 494f62c4786SHajimu UMEMOTO return (-1); 495f62c4786SHajimu UMEMOTO exptime = ns_datetosecs(buf2, &dateerror); 496f62c4786SHajimu UMEMOTO if (dateerror) 497f62c4786SHajimu UMEMOTO return (-1); 498f62c4786SHajimu UMEMOTO } 499f62c4786SHajimu UMEMOTO /* expire */ 500f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 501f62c4786SHajimu UMEMOTO PUTLONG(exptime, cp); 502f62c4786SHajimu UMEMOTO /* timesigned */ 503f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 504f62c4786SHajimu UMEMOTO return (-1); 505f62c4786SHajimu UMEMOTO timesigned = ns_datetosecs(buf2, &dateerror); 506f62c4786SHajimu UMEMOTO if (!dateerror) { 507f62c4786SHajimu UMEMOTO ShrinkBuffer(INT32SZ); 508f62c4786SHajimu UMEMOTO PUTLONG(timesigned, cp); 509f62c4786SHajimu UMEMOTO } 510f62c4786SHajimu UMEMOTO else 511f62c4786SHajimu UMEMOTO return (-1); 512f62c4786SHajimu UMEMOTO /* footprint */ 513f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 514f62c4786SHajimu UMEMOTO if (n < 0) 515f62c4786SHajimu UMEMOTO return (-1); 516f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 517f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 518f62c4786SHajimu UMEMOTO /* signer name */ 519f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 520f62c4786SHajimu UMEMOTO return (-1); 521f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, dnptrs, lastdnptr); 522f62c4786SHajimu UMEMOTO if (n < 0) 523f62c4786SHajimu UMEMOTO return (-1); 524f62c4786SHajimu UMEMOTO cp += n; 525f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 526f62c4786SHajimu UMEMOTO /* sig */ 527f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 528f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 529f62c4786SHajimu UMEMOTO return (-1); 530f62c4786SHajimu UMEMOTO siglen = b64_pton(buf2, buf3, sizeof(buf3)); 531f62c4786SHajimu UMEMOTO if (siglen < 0) 532f62c4786SHajimu UMEMOTO return (-1); 533f62c4786SHajimu UMEMOTO ShrinkBuffer(siglen); 534f62c4786SHajimu UMEMOTO memcpy(cp, buf3, siglen); 535f62c4786SHajimu UMEMOTO cp += siglen; 536f62c4786SHajimu UMEMOTO break; 537f62c4786SHajimu UMEMOTO } 538f62c4786SHajimu UMEMOTO case ns_t_key: 539f62c4786SHajimu UMEMOTO /* flags */ 540f62c4786SHajimu UMEMOTO n = gethexnum_str(&startp, endp); 541f62c4786SHajimu UMEMOTO if (n < 0) 542f62c4786SHajimu UMEMOTO return (-1); 543f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 544f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 545f62c4786SHajimu UMEMOTO /* proto */ 546f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 547f62c4786SHajimu UMEMOTO if (n < 0) 548f62c4786SHajimu UMEMOTO return (-1); 549f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 550f62c4786SHajimu UMEMOTO *cp++ = n; 551f62c4786SHajimu UMEMOTO /* alg */ 552f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 553f62c4786SHajimu UMEMOTO if (n < 0) 554f62c4786SHajimu UMEMOTO return (-1); 555f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 556f62c4786SHajimu UMEMOTO *cp++ = n; 557f62c4786SHajimu UMEMOTO /* key */ 558f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 559f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 560f62c4786SHajimu UMEMOTO return (-1); 561f62c4786SHajimu UMEMOTO keylen = b64_pton(buf2, buf3, sizeof(buf3)); 562f62c4786SHajimu UMEMOTO if (keylen < 0) 563f62c4786SHajimu UMEMOTO return (-1); 564f62c4786SHajimu UMEMOTO ShrinkBuffer(keylen); 565f62c4786SHajimu UMEMOTO memcpy(cp, buf3, keylen); 566f62c4786SHajimu UMEMOTO cp += keylen; 567f62c4786SHajimu UMEMOTO break; 568f62c4786SHajimu UMEMOTO case ns_t_nxt: 569f62c4786SHajimu UMEMOTO { 570f62c4786SHajimu UMEMOTO int success, nxt_type; 571f62c4786SHajimu UMEMOTO u_char data[32]; 572f62c4786SHajimu UMEMOTO int maxtype; 573f62c4786SHajimu UMEMOTO 574f62c4786SHajimu UMEMOTO /* next name */ 575f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 576f62c4786SHajimu UMEMOTO return (-1); 577f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 578f62c4786SHajimu UMEMOTO if (n < 0) 579f62c4786SHajimu UMEMOTO return (-1); 580f62c4786SHajimu UMEMOTO cp += n; 581f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 582f62c4786SHajimu UMEMOTO maxtype = 0; 583f62c4786SHajimu UMEMOTO memset(data, 0, sizeof data); 584f62c4786SHajimu UMEMOTO for (;;) { 585f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, 586f62c4786SHajimu UMEMOTO endp)) 587f62c4786SHajimu UMEMOTO break; 588f62c4786SHajimu UMEMOTO nxt_type = sym_ston(__p_type_syms, buf2, 589f62c4786SHajimu UMEMOTO &success); 590f62c4786SHajimu UMEMOTO if (!success || !ns_t_rr_p(nxt_type)) 591f62c4786SHajimu UMEMOTO return (-1); 592f62c4786SHajimu UMEMOTO NS_NXT_BIT_SET(nxt_type, data); 593f62c4786SHajimu UMEMOTO if (nxt_type > maxtype) 594f62c4786SHajimu UMEMOTO maxtype = nxt_type; 595f62c4786SHajimu UMEMOTO } 596f62c4786SHajimu UMEMOTO n = maxtype/NS_NXT_BITS+1; 597f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 598f62c4786SHajimu UMEMOTO memcpy(cp, data, n); 599f62c4786SHajimu UMEMOTO cp += n; 600f62c4786SHajimu UMEMOTO break; 601f62c4786SHajimu UMEMOTO } 602f62c4786SHajimu UMEMOTO case ns_t_cert: 603f62c4786SHajimu UMEMOTO /* type */ 604f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 605f62c4786SHajimu UMEMOTO if (n < 0) 606f62c4786SHajimu UMEMOTO return (-1); 607f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 608f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 609f62c4786SHajimu UMEMOTO /* key tag */ 610f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 611f62c4786SHajimu UMEMOTO if (n < 0) 612f62c4786SHajimu UMEMOTO return (-1); 613f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 614f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 615f62c4786SHajimu UMEMOTO /* alg */ 616f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 617f62c4786SHajimu UMEMOTO if (n < 0) 618f62c4786SHajimu UMEMOTO return (-1); 619f62c4786SHajimu UMEMOTO ShrinkBuffer(1); 620f62c4786SHajimu UMEMOTO *cp++ = n; 621f62c4786SHajimu UMEMOTO /* cert */ 622f62c4786SHajimu UMEMOTO if ((n = getword_str(buf2, sizeof buf2, 623f62c4786SHajimu UMEMOTO &startp, endp)) < 0) 624f62c4786SHajimu UMEMOTO return (-1); 625f62c4786SHajimu UMEMOTO certlen = b64_pton(buf2, buf3, sizeof(buf3)); 626f62c4786SHajimu UMEMOTO if (certlen < 0) 627f62c4786SHajimu UMEMOTO return (-1); 628f62c4786SHajimu UMEMOTO ShrinkBuffer(certlen); 629f62c4786SHajimu UMEMOTO memcpy(cp, buf3, certlen); 630f62c4786SHajimu UMEMOTO cp += certlen; 631f62c4786SHajimu UMEMOTO break; 632f62c4786SHajimu UMEMOTO case ns_t_aaaa: 633f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 634f62c4786SHajimu UMEMOTO return (-1); 635f62c4786SHajimu UMEMOTO if (inet_pton(AF_INET6, buf2, &in6a) <= 0) 636f62c4786SHajimu UMEMOTO return (-1); 637f62c4786SHajimu UMEMOTO ShrinkBuffer(NS_IN6ADDRSZ); 638f62c4786SHajimu UMEMOTO memcpy(cp, &in6a, NS_IN6ADDRSZ); 639f62c4786SHajimu UMEMOTO cp += NS_IN6ADDRSZ; 640f62c4786SHajimu UMEMOTO break; 641f62c4786SHajimu UMEMOTO case ns_t_naptr: 642f62c4786SHajimu UMEMOTO /* Order Preference Flags Service Replacement Regexp */ 643f62c4786SHajimu UMEMOTO /* Order */ 644f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 645f62c4786SHajimu UMEMOTO if (n < 0 || n > 65535) 646f62c4786SHajimu UMEMOTO return (-1); 647f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 648f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 649f62c4786SHajimu UMEMOTO /* Preference */ 650f62c4786SHajimu UMEMOTO n = getnum_str(&startp, endp); 651f62c4786SHajimu UMEMOTO if (n < 0 || n > 65535) 652f62c4786SHajimu UMEMOTO return (-1); 653f62c4786SHajimu UMEMOTO ShrinkBuffer(INT16SZ); 654f62c4786SHajimu UMEMOTO PUTSHORT(n, cp); 655f62c4786SHajimu UMEMOTO /* Flags */ 656f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 657f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 658f62c4786SHajimu UMEMOTO return (-1); 659f62c4786SHajimu UMEMOTO } 660f62c4786SHajimu UMEMOTO if (n > 255) 661f62c4786SHajimu UMEMOTO return (-1); 662f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 663f62c4786SHajimu UMEMOTO *cp++ = n; 664f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 665f62c4786SHajimu UMEMOTO cp += n; 666f62c4786SHajimu UMEMOTO /* Service Classes */ 667f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 668f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 669f62c4786SHajimu UMEMOTO return (-1); 670f62c4786SHajimu UMEMOTO } 671f62c4786SHajimu UMEMOTO if (n > 255) 672f62c4786SHajimu UMEMOTO return (-1); 673f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 674f62c4786SHajimu UMEMOTO *cp++ = n; 675f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 676f62c4786SHajimu UMEMOTO cp += n; 677f62c4786SHajimu UMEMOTO /* Pattern */ 678f62c4786SHajimu UMEMOTO if ((n = getstr_str(buf2, sizeof buf2, 679f62c4786SHajimu UMEMOTO &startp, endp)) < 0) { 680f62c4786SHajimu UMEMOTO return (-1); 681f62c4786SHajimu UMEMOTO } 682f62c4786SHajimu UMEMOTO if (n > 255) 683f62c4786SHajimu UMEMOTO return (-1); 684f62c4786SHajimu UMEMOTO ShrinkBuffer(n+1); 685f62c4786SHajimu UMEMOTO *cp++ = n; 686f62c4786SHajimu UMEMOTO memcpy(cp, buf2, n); 687f62c4786SHajimu UMEMOTO cp += n; 688f62c4786SHajimu UMEMOTO /* Replacement */ 689f62c4786SHajimu UMEMOTO if (!getword_str(buf2, sizeof buf2, &startp, endp)) 690f62c4786SHajimu UMEMOTO return (-1); 691f62c4786SHajimu UMEMOTO n = dn_comp(buf2, cp, buflen, NULL, NULL); 692f62c4786SHajimu UMEMOTO if (n < 0) 693f62c4786SHajimu UMEMOTO return (-1); 694f62c4786SHajimu UMEMOTO cp += n; 695f62c4786SHajimu UMEMOTO ShrinkBuffer(n); 696f62c4786SHajimu UMEMOTO break; 697f62c4786SHajimu UMEMOTO default: 698f62c4786SHajimu UMEMOTO return (-1); 699f62c4786SHajimu UMEMOTO } /*switch*/ 700f62c4786SHajimu UMEMOTO n = (u_int16_t)((cp - sp2) - INT16SZ); 701f62c4786SHajimu UMEMOTO PUTSHORT(n, sp2); 702f62c4786SHajimu UMEMOTO } /*for*/ 703f62c4786SHajimu UMEMOTO 704f62c4786SHajimu UMEMOTO hp->qdcount = htons(counts[0]); 705f62c4786SHajimu UMEMOTO hp->ancount = htons(counts[1]); 706f62c4786SHajimu UMEMOTO hp->nscount = htons(counts[2]); 707f62c4786SHajimu UMEMOTO hp->arcount = htons(counts[3]); 708f62c4786SHajimu UMEMOTO return (cp - buf); 709f62c4786SHajimu UMEMOTO } 710f62c4786SHajimu UMEMOTO 711f62c4786SHajimu UMEMOTO /* 712f62c4786SHajimu UMEMOTO * Get a whitespace delimited word from a string (not file) 713f62c4786SHajimu UMEMOTO * into buf. modify the start pointer to point after the 714f62c4786SHajimu UMEMOTO * word in the string. 715f62c4786SHajimu UMEMOTO */ 716f62c4786SHajimu UMEMOTO static int 717f62c4786SHajimu UMEMOTO getword_str(char *buf, int size, u_char **startpp, u_char *endp) { 718f62c4786SHajimu UMEMOTO char *cp; 719f62c4786SHajimu UMEMOTO int c; 720f62c4786SHajimu UMEMOTO 721f62c4786SHajimu UMEMOTO for (cp = buf; *startpp <= endp; ) { 722f62c4786SHajimu UMEMOTO c = **startpp; 723f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 724f62c4786SHajimu UMEMOTO if (cp != buf) /* trailing whitespace */ 725f62c4786SHajimu UMEMOTO break; 726f62c4786SHajimu UMEMOTO else { /* leading whitespace */ 727f62c4786SHajimu UMEMOTO (*startpp)++; 728f62c4786SHajimu UMEMOTO continue; 729f62c4786SHajimu UMEMOTO } 730f62c4786SHajimu UMEMOTO } 731f62c4786SHajimu UMEMOTO (*startpp)++; 732f62c4786SHajimu UMEMOTO if (cp >= buf+size-1) 733f62c4786SHajimu UMEMOTO break; 734f62c4786SHajimu UMEMOTO *cp++ = (u_char)c; 735f62c4786SHajimu UMEMOTO } 736f62c4786SHajimu UMEMOTO *cp = '\0'; 737f62c4786SHajimu UMEMOTO return (cp != buf); 738f62c4786SHajimu UMEMOTO } 739f62c4786SHajimu UMEMOTO 740f62c4786SHajimu UMEMOTO /* 741f62c4786SHajimu UMEMOTO * get a white spae delimited string from memory. Process quoted strings 742f62c4786SHajimu UMEMOTO * and \DDD escapes. Return length or -1 on error. Returned string may 743f62c4786SHajimu UMEMOTO * contain nulls. 744f62c4786SHajimu UMEMOTO */ 745f62c4786SHajimu UMEMOTO static char digits[] = "0123456789"; 746f62c4786SHajimu UMEMOTO static int 747f62c4786SHajimu UMEMOTO getstr_str(char *buf, int size, u_char **startpp, u_char *endp) { 748f62c4786SHajimu UMEMOTO char *cp; 749f62c4786SHajimu UMEMOTO int c, c1 = 0; 750f62c4786SHajimu UMEMOTO int inquote = 0; 751f62c4786SHajimu UMEMOTO int seen_quote = 0; 752f62c4786SHajimu UMEMOTO int escape = 0; 753f62c4786SHajimu UMEMOTO int dig = 0; 754f62c4786SHajimu UMEMOTO 755f62c4786SHajimu UMEMOTO for (cp = buf; *startpp <= endp; ) { 756f62c4786SHajimu UMEMOTO if ((c = **startpp) == '\0') 757f62c4786SHajimu UMEMOTO break; 758f62c4786SHajimu UMEMOTO /* leading white space */ 759f62c4786SHajimu UMEMOTO if ((cp == buf) && !seen_quote && isspace(c)) { 760f62c4786SHajimu UMEMOTO (*startpp)++; 761f62c4786SHajimu UMEMOTO continue; 762f62c4786SHajimu UMEMOTO } 763f62c4786SHajimu UMEMOTO 764f62c4786SHajimu UMEMOTO switch (c) { 765f62c4786SHajimu UMEMOTO case '\\': 766f62c4786SHajimu UMEMOTO if (!escape) { 767f62c4786SHajimu UMEMOTO escape = 1; 768f62c4786SHajimu UMEMOTO dig = 0; 769f62c4786SHajimu UMEMOTO c1 = 0; 770f62c4786SHajimu UMEMOTO (*startpp)++; 771f62c4786SHajimu UMEMOTO continue; 772f62c4786SHajimu UMEMOTO } 773f62c4786SHajimu UMEMOTO goto do_escape; 774f62c4786SHajimu UMEMOTO case '"': 775f62c4786SHajimu UMEMOTO if (!escape) { 776f62c4786SHajimu UMEMOTO inquote = !inquote; 777f62c4786SHajimu UMEMOTO seen_quote = 1; 778f62c4786SHajimu UMEMOTO (*startpp)++; 779f62c4786SHajimu UMEMOTO continue; 780f62c4786SHajimu UMEMOTO } 781f62c4786SHajimu UMEMOTO /* fall through */ 782f62c4786SHajimu UMEMOTO default: 783f62c4786SHajimu UMEMOTO do_escape: 784f62c4786SHajimu UMEMOTO if (escape) { 785f62c4786SHajimu UMEMOTO switch (c) { 786f62c4786SHajimu UMEMOTO case '0': 787f62c4786SHajimu UMEMOTO case '1': 788f62c4786SHajimu UMEMOTO case '2': 789f62c4786SHajimu UMEMOTO case '3': 790f62c4786SHajimu UMEMOTO case '4': 791f62c4786SHajimu UMEMOTO case '5': 792f62c4786SHajimu UMEMOTO case '6': 793f62c4786SHajimu UMEMOTO case '7': 794f62c4786SHajimu UMEMOTO case '8': 795f62c4786SHajimu UMEMOTO case '9': 796f62c4786SHajimu UMEMOTO c1 = c1 * 10 + 797f62c4786SHajimu UMEMOTO (strchr(digits, c) - digits); 798f62c4786SHajimu UMEMOTO 799f62c4786SHajimu UMEMOTO if (++dig == 3) { 800f62c4786SHajimu UMEMOTO c = c1 &0xff; 801f62c4786SHajimu UMEMOTO break; 802f62c4786SHajimu UMEMOTO } 803f62c4786SHajimu UMEMOTO (*startpp)++; 804f62c4786SHajimu UMEMOTO continue; 805f62c4786SHajimu UMEMOTO } 806f62c4786SHajimu UMEMOTO escape = 0; 807f62c4786SHajimu UMEMOTO } else if (!inquote && isspace(c)) 808f62c4786SHajimu UMEMOTO goto done; 809f62c4786SHajimu UMEMOTO if (cp >= buf+size-1) 810f62c4786SHajimu UMEMOTO goto done; 811f62c4786SHajimu UMEMOTO *cp++ = (u_char)c; 812f62c4786SHajimu UMEMOTO (*startpp)++; 813f62c4786SHajimu UMEMOTO } 814f62c4786SHajimu UMEMOTO } 815f62c4786SHajimu UMEMOTO done: 816f62c4786SHajimu UMEMOTO *cp = '\0'; 817f62c4786SHajimu UMEMOTO return ((cp == buf)? (seen_quote? 0: -1): (cp - buf)); 818f62c4786SHajimu UMEMOTO } 819f62c4786SHajimu UMEMOTO /* 820f62c4786SHajimu UMEMOTO * Get a whitespace delimited base 16 number from a string (not file) into buf 821f62c4786SHajimu UMEMOTO * update the start pointer to point after the number in the string. 822f62c4786SHajimu UMEMOTO */ 823f62c4786SHajimu UMEMOTO static int 824f62c4786SHajimu UMEMOTO gethexnum_str(u_char **startpp, u_char *endp) { 825f62c4786SHajimu UMEMOTO int c, n; 826f62c4786SHajimu UMEMOTO int seendigit = 0; 827f62c4786SHajimu UMEMOTO int m = 0; 828f62c4786SHajimu UMEMOTO 829f62c4786SHajimu UMEMOTO if (*startpp + 2 >= endp || strncasecmp((char *)*startpp, "0x", 2) != 0) 830f62c4786SHajimu UMEMOTO return getnum_str(startpp, endp); 831f62c4786SHajimu UMEMOTO (*startpp)+=2; 832f62c4786SHajimu UMEMOTO for (n = 0; *startpp <= endp; ) { 833f62c4786SHajimu UMEMOTO c = **startpp; 834f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 835f62c4786SHajimu UMEMOTO if (seendigit) /* trailing whitespace */ 836f62c4786SHajimu UMEMOTO break; 837f62c4786SHajimu UMEMOTO else { /* leading whitespace */ 838f62c4786SHajimu UMEMOTO (*startpp)++; 839f62c4786SHajimu UMEMOTO continue; 840f62c4786SHajimu UMEMOTO } 841f62c4786SHajimu UMEMOTO } 842f62c4786SHajimu UMEMOTO if (c == ';') { 843f62c4786SHajimu UMEMOTO while ((*startpp <= endp) && 844f62c4786SHajimu UMEMOTO ((c = **startpp) != '\n')) 845f62c4786SHajimu UMEMOTO (*startpp)++; 846f62c4786SHajimu UMEMOTO if (seendigit) 847f62c4786SHajimu UMEMOTO break; 848f62c4786SHajimu UMEMOTO continue; 849f62c4786SHajimu UMEMOTO } 850f62c4786SHajimu UMEMOTO if (!isxdigit(c)) { 851f62c4786SHajimu UMEMOTO if (c == ')' && seendigit) { 852f62c4786SHajimu UMEMOTO (*startpp)--; 853f62c4786SHajimu UMEMOTO break; 854f62c4786SHajimu UMEMOTO } 855f62c4786SHajimu UMEMOTO return (-1); 856f62c4786SHajimu UMEMOTO } 857f62c4786SHajimu UMEMOTO (*startpp)++; 858f62c4786SHajimu UMEMOTO if (isdigit(c)) 859f62c4786SHajimu UMEMOTO n = n * 16 + (c - '0'); 860f62c4786SHajimu UMEMOTO else 861f62c4786SHajimu UMEMOTO n = n * 16 + (tolower(c) - 'a' + 10); 862f62c4786SHajimu UMEMOTO seendigit = 1; 863f62c4786SHajimu UMEMOTO } 864f62c4786SHajimu UMEMOTO return (n + m); 865f62c4786SHajimu UMEMOTO } 866f62c4786SHajimu UMEMOTO 867f62c4786SHajimu UMEMOTO /* 868f62c4786SHajimu UMEMOTO * Get a whitespace delimited base 10 number from a string (not file) into buf 869f62c4786SHajimu UMEMOTO * update the start pointer to point after the number in the string. 870f62c4786SHajimu UMEMOTO */ 871f62c4786SHajimu UMEMOTO static int 872f62c4786SHajimu UMEMOTO getnum_str(u_char **startpp, u_char *endp) { 873f62c4786SHajimu UMEMOTO int c, n; 874f62c4786SHajimu UMEMOTO int seendigit = 0; 875f62c4786SHajimu UMEMOTO int m = 0; 876f62c4786SHajimu UMEMOTO 877f62c4786SHajimu UMEMOTO for (n = 0; *startpp <= endp; ) { 878f62c4786SHajimu UMEMOTO c = **startpp; 879f62c4786SHajimu UMEMOTO if (isspace(c) || c == '\0') { 880f62c4786SHajimu UMEMOTO if (seendigit) /* trailing whitespace */ 881f62c4786SHajimu UMEMOTO break; 882f62c4786SHajimu UMEMOTO else { /* leading whitespace */ 883f62c4786SHajimu UMEMOTO (*startpp)++; 884f62c4786SHajimu UMEMOTO continue; 885f62c4786SHajimu UMEMOTO } 886f62c4786SHajimu UMEMOTO } 887f62c4786SHajimu UMEMOTO if (c == ';') { 888f62c4786SHajimu UMEMOTO while ((*startpp <= endp) && 889f62c4786SHajimu UMEMOTO ((c = **startpp) != '\n')) 890f62c4786SHajimu UMEMOTO (*startpp)++; 891f62c4786SHajimu UMEMOTO if (seendigit) 892f62c4786SHajimu UMEMOTO break; 893f62c4786SHajimu UMEMOTO continue; 894f62c4786SHajimu UMEMOTO } 895f62c4786SHajimu UMEMOTO if (!isdigit(c)) { 896f62c4786SHajimu UMEMOTO if (c == ')' && seendigit) { 897f62c4786SHajimu UMEMOTO (*startpp)--; 898f62c4786SHajimu UMEMOTO break; 899f62c4786SHajimu UMEMOTO } 900f62c4786SHajimu UMEMOTO return (-1); 901f62c4786SHajimu UMEMOTO } 902f62c4786SHajimu UMEMOTO (*startpp)++; 903f62c4786SHajimu UMEMOTO n = n * 10 + (c - '0'); 904f62c4786SHajimu UMEMOTO seendigit = 1; 905f62c4786SHajimu UMEMOTO } 906f62c4786SHajimu UMEMOTO return (n + m); 907f62c4786SHajimu UMEMOTO } 908f62c4786SHajimu UMEMOTO 909f62c4786SHajimu UMEMOTO /* 910f62c4786SHajimu UMEMOTO * Allocate a resource record buffer & save rr info. 911f62c4786SHajimu UMEMOTO */ 912f62c4786SHajimu UMEMOTO ns_updrec * 913f62c4786SHajimu UMEMOTO res_mkupdrec(int section, const char *dname, 914f62c4786SHajimu UMEMOTO u_int class, u_int type, u_long ttl) { 915f62c4786SHajimu UMEMOTO ns_updrec *rrecp = (ns_updrec *)calloc(1, sizeof(ns_updrec)); 916f62c4786SHajimu UMEMOTO 917f62c4786SHajimu UMEMOTO if (!rrecp || !(rrecp->r_dname = strdup(dname))) { 918f62c4786SHajimu UMEMOTO if (rrecp) 919f62c4786SHajimu UMEMOTO free((char *)rrecp); 920f62c4786SHajimu UMEMOTO return (NULL); 921f62c4786SHajimu UMEMOTO } 922f62c4786SHajimu UMEMOTO INIT_LINK(rrecp, r_link); 923f62c4786SHajimu UMEMOTO INIT_LINK(rrecp, r_glink); 924f62c4786SHajimu UMEMOTO rrecp->r_class = (ns_class)class; 925f62c4786SHajimu UMEMOTO rrecp->r_type = (ns_type)type; 926f62c4786SHajimu UMEMOTO rrecp->r_ttl = ttl; 927f62c4786SHajimu UMEMOTO rrecp->r_section = (ns_sect)section; 928f62c4786SHajimu UMEMOTO return (rrecp); 929f62c4786SHajimu UMEMOTO } 930f62c4786SHajimu UMEMOTO 931f62c4786SHajimu UMEMOTO /* 932f62c4786SHajimu UMEMOTO * Free a resource record buffer created by res_mkupdrec. 933f62c4786SHajimu UMEMOTO */ 934f62c4786SHajimu UMEMOTO void 935f62c4786SHajimu UMEMOTO res_freeupdrec(ns_updrec *rrecp) { 936f62c4786SHajimu UMEMOTO /* Note: freeing r_dp is the caller's responsibility. */ 937f62c4786SHajimu UMEMOTO if (rrecp->r_dname != NULL) 938f62c4786SHajimu UMEMOTO free(rrecp->r_dname); 939f62c4786SHajimu UMEMOTO free(rrecp); 940f62c4786SHajimu UMEMOTO } 941f62c4786SHajimu UMEMOTO 942f62c4786SHajimu UMEMOTO struct valuelist { 943f62c4786SHajimu UMEMOTO struct valuelist * next; 944f62c4786SHajimu UMEMOTO struct valuelist * prev; 945f62c4786SHajimu UMEMOTO char * name; 946f62c4786SHajimu UMEMOTO char * proto; 947f62c4786SHajimu UMEMOTO int port; 948f62c4786SHajimu UMEMOTO }; 949f62c4786SHajimu UMEMOTO static struct valuelist *servicelist, *protolist; 950f62c4786SHajimu UMEMOTO 951f62c4786SHajimu UMEMOTO static void 952f62c4786SHajimu UMEMOTO res_buildservicelist() { 953f62c4786SHajimu UMEMOTO struct servent *sp; 954f62c4786SHajimu UMEMOTO struct valuelist *slp; 955f62c4786SHajimu UMEMOTO 956f62c4786SHajimu UMEMOTO #ifdef MAYBE_HESIOD 957f62c4786SHajimu UMEMOTO setservent(0); 958f62c4786SHajimu UMEMOTO #else 959f62c4786SHajimu UMEMOTO setservent(1); 960f62c4786SHajimu UMEMOTO #endif 961f62c4786SHajimu UMEMOTO while ((sp = getservent()) != NULL) { 962f62c4786SHajimu UMEMOTO slp = (struct valuelist *)malloc(sizeof(struct valuelist)); 963f62c4786SHajimu UMEMOTO if (!slp) 964f62c4786SHajimu UMEMOTO break; 965f62c4786SHajimu UMEMOTO slp->name = strdup(sp->s_name); 966f62c4786SHajimu UMEMOTO slp->proto = strdup(sp->s_proto); 967f62c4786SHajimu UMEMOTO if ((slp->name == NULL) || (slp->proto == NULL)) { 968f62c4786SHajimu UMEMOTO if (slp->name) free(slp->name); 969f62c4786SHajimu UMEMOTO if (slp->proto) free(slp->proto); 970f62c4786SHajimu UMEMOTO free(slp); 971f62c4786SHajimu UMEMOTO break; 972f62c4786SHajimu UMEMOTO } 973f62c4786SHajimu UMEMOTO slp->port = ntohs((u_int16_t)sp->s_port); /* host byt order */ 974f62c4786SHajimu UMEMOTO slp->next = servicelist; 975f62c4786SHajimu UMEMOTO slp->prev = NULL; 976f62c4786SHajimu UMEMOTO if (servicelist) 977f62c4786SHajimu UMEMOTO servicelist->prev = slp; 978f62c4786SHajimu UMEMOTO servicelist = slp; 979f62c4786SHajimu UMEMOTO } 980f62c4786SHajimu UMEMOTO endservent(); 981f62c4786SHajimu UMEMOTO } 982f62c4786SHajimu UMEMOTO 983f62c4786SHajimu UMEMOTO void 984f62c4786SHajimu UMEMOTO res_destroyservicelist() { 985f62c4786SHajimu UMEMOTO struct valuelist *slp, *slp_next; 986f62c4786SHajimu UMEMOTO 987f62c4786SHajimu UMEMOTO for (slp = servicelist; slp != NULL; slp = slp_next) { 988f62c4786SHajimu UMEMOTO slp_next = slp->next; 989f62c4786SHajimu UMEMOTO free(slp->name); 990f62c4786SHajimu UMEMOTO free(slp->proto); 991f62c4786SHajimu UMEMOTO free(slp); 992f62c4786SHajimu UMEMOTO } 993f62c4786SHajimu UMEMOTO servicelist = (struct valuelist *)0; 994f62c4786SHajimu UMEMOTO } 995f62c4786SHajimu UMEMOTO 996f62c4786SHajimu UMEMOTO void 997f62c4786SHajimu UMEMOTO res_buildprotolist(void) { 998f62c4786SHajimu UMEMOTO struct protoent *pp; 999f62c4786SHajimu UMEMOTO struct valuelist *slp; 1000f62c4786SHajimu UMEMOTO 1001f62c4786SHajimu UMEMOTO #ifdef MAYBE_HESIOD 1002f62c4786SHajimu UMEMOTO setprotoent(0); 1003f62c4786SHajimu UMEMOTO #else 1004f62c4786SHajimu UMEMOTO setprotoent(1); 1005f62c4786SHajimu UMEMOTO #endif 1006f62c4786SHajimu UMEMOTO while ((pp = getprotoent()) != NULL) { 1007f62c4786SHajimu UMEMOTO slp = (struct valuelist *)malloc(sizeof(struct valuelist)); 1008f62c4786SHajimu UMEMOTO if (!slp) 1009f62c4786SHajimu UMEMOTO break; 1010f62c4786SHajimu UMEMOTO slp->name = strdup(pp->p_name); 1011f62c4786SHajimu UMEMOTO if (slp->name == NULL) { 1012f62c4786SHajimu UMEMOTO free(slp); 1013f62c4786SHajimu UMEMOTO break; 1014f62c4786SHajimu UMEMOTO } 1015f62c4786SHajimu UMEMOTO slp->port = pp->p_proto; /* host byte order */ 1016f62c4786SHajimu UMEMOTO slp->next = protolist; 1017f62c4786SHajimu UMEMOTO slp->prev = NULL; 1018f62c4786SHajimu UMEMOTO if (protolist) 1019f62c4786SHajimu UMEMOTO protolist->prev = slp; 1020f62c4786SHajimu UMEMOTO protolist = slp; 1021f62c4786SHajimu UMEMOTO } 1022f62c4786SHajimu UMEMOTO endprotoent(); 1023f62c4786SHajimu UMEMOTO } 1024f62c4786SHajimu UMEMOTO 1025f62c4786SHajimu UMEMOTO void 1026f62c4786SHajimu UMEMOTO res_destroyprotolist(void) { 1027f62c4786SHajimu UMEMOTO struct valuelist *plp, *plp_next; 1028f62c4786SHajimu UMEMOTO 1029f62c4786SHajimu UMEMOTO for (plp = protolist; plp != NULL; plp = plp_next) { 1030f62c4786SHajimu UMEMOTO plp_next = plp->next; 1031f62c4786SHajimu UMEMOTO free(plp->name); 1032f62c4786SHajimu UMEMOTO free(plp); 1033f62c4786SHajimu UMEMOTO } 1034f62c4786SHajimu UMEMOTO protolist = (struct valuelist *)0; 1035f62c4786SHajimu UMEMOTO } 1036f62c4786SHajimu UMEMOTO 1037f62c4786SHajimu UMEMOTO static int 1038f62c4786SHajimu UMEMOTO findservice(const char *s, struct valuelist **list) { 1039f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1040f62c4786SHajimu UMEMOTO int n; 1041f62c4786SHajimu UMEMOTO 1042f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) 1043f62c4786SHajimu UMEMOTO if (strcasecmp(lp->name, s) == 0) { 1044f62c4786SHajimu UMEMOTO if (lp != *list) { 1045f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1046f62c4786SHajimu UMEMOTO if (lp->next) 1047f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1048f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1049f62c4786SHajimu UMEMOTO lp->next = *list; 1050f62c4786SHajimu UMEMOTO *list = lp; 1051f62c4786SHajimu UMEMOTO } 1052f62c4786SHajimu UMEMOTO return (lp->port); /* host byte order */ 1053f62c4786SHajimu UMEMOTO } 1054f62c4786SHajimu UMEMOTO if (sscanf(s, "%d", &n) != 1 || n <= 0) 1055f62c4786SHajimu UMEMOTO n = -1; 1056f62c4786SHajimu UMEMOTO return (n); 1057f62c4786SHajimu UMEMOTO } 1058f62c4786SHajimu UMEMOTO 1059f62c4786SHajimu UMEMOTO /* 1060f62c4786SHajimu UMEMOTO * Convert service name or (ascii) number to int. 1061f62c4786SHajimu UMEMOTO */ 1062f62c4786SHajimu UMEMOTO int 1063f62c4786SHajimu UMEMOTO res_servicenumber(const char *p) { 1064f62c4786SHajimu UMEMOTO if (servicelist == (struct valuelist *)0) 1065f62c4786SHajimu UMEMOTO res_buildservicelist(); 1066f62c4786SHajimu UMEMOTO return (findservice(p, &servicelist)); 1067f62c4786SHajimu UMEMOTO } 1068f62c4786SHajimu UMEMOTO 1069f62c4786SHajimu UMEMOTO /* 1070f62c4786SHajimu UMEMOTO * Convert protocol name or (ascii) number to int. 1071f62c4786SHajimu UMEMOTO */ 1072f62c4786SHajimu UMEMOTO int 1073f62c4786SHajimu UMEMOTO res_protocolnumber(const char *p) { 1074f62c4786SHajimu UMEMOTO if (protolist == (struct valuelist *)0) 1075f62c4786SHajimu UMEMOTO res_buildprotolist(); 1076f62c4786SHajimu UMEMOTO return (findservice(p, &protolist)); 1077f62c4786SHajimu UMEMOTO } 1078f62c4786SHajimu UMEMOTO 1079f62c4786SHajimu UMEMOTO static struct servent * 1080f62c4786SHajimu UMEMOTO cgetservbyport(u_int16_t port, const char *proto) { /* Host byte order. */ 1081f62c4786SHajimu UMEMOTO struct valuelist **list = &servicelist; 1082f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1083f62c4786SHajimu UMEMOTO static struct servent serv; 1084f62c4786SHajimu UMEMOTO 1085f62c4786SHajimu UMEMOTO port = ntohs(port); 1086f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) { 1087f62c4786SHajimu UMEMOTO if (port != (u_int16_t)lp->port) /* Host byte order. */ 1088f62c4786SHajimu UMEMOTO continue; 1089f62c4786SHajimu UMEMOTO if (strcasecmp(lp->proto, proto) == 0) { 1090f62c4786SHajimu UMEMOTO if (lp != *list) { 1091f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1092f62c4786SHajimu UMEMOTO if (lp->next) 1093f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1094f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1095f62c4786SHajimu UMEMOTO lp->next = *list; 1096f62c4786SHajimu UMEMOTO *list = lp; 1097f62c4786SHajimu UMEMOTO } 1098f62c4786SHajimu UMEMOTO serv.s_name = lp->name; 1099f62c4786SHajimu UMEMOTO serv.s_port = htons((u_int16_t)lp->port); 1100f62c4786SHajimu UMEMOTO serv.s_proto = lp->proto; 1101f62c4786SHajimu UMEMOTO return (&serv); 1102f62c4786SHajimu UMEMOTO } 1103f62c4786SHajimu UMEMOTO } 1104f62c4786SHajimu UMEMOTO return (0); 1105f62c4786SHajimu UMEMOTO } 1106f62c4786SHajimu UMEMOTO 1107f62c4786SHajimu UMEMOTO static struct protoent * 1108f62c4786SHajimu UMEMOTO cgetprotobynumber(int proto) { /* Host byte order. */ 1109f62c4786SHajimu UMEMOTO struct valuelist **list = &protolist; 1110f62c4786SHajimu UMEMOTO struct valuelist *lp = *list; 1111f62c4786SHajimu UMEMOTO static struct protoent prot; 1112f62c4786SHajimu UMEMOTO 1113f62c4786SHajimu UMEMOTO for (; lp != NULL; lp = lp->next) 1114f62c4786SHajimu UMEMOTO if (lp->port == proto) { /* Host byte order. */ 1115f62c4786SHajimu UMEMOTO if (lp != *list) { 1116f62c4786SHajimu UMEMOTO lp->prev->next = lp->next; 1117f62c4786SHajimu UMEMOTO if (lp->next) 1118f62c4786SHajimu UMEMOTO lp->next->prev = lp->prev; 1119f62c4786SHajimu UMEMOTO (*list)->prev = lp; 1120f62c4786SHajimu UMEMOTO lp->next = *list; 1121f62c4786SHajimu UMEMOTO *list = lp; 1122f62c4786SHajimu UMEMOTO } 1123f62c4786SHajimu UMEMOTO prot.p_name = lp->name; 1124f62c4786SHajimu UMEMOTO prot.p_proto = lp->port; /* Host byte order. */ 1125f62c4786SHajimu UMEMOTO return (&prot); 1126f62c4786SHajimu UMEMOTO } 1127f62c4786SHajimu UMEMOTO return (0); 1128f62c4786SHajimu UMEMOTO } 1129f62c4786SHajimu UMEMOTO 1130f62c4786SHajimu UMEMOTO const char * 1131f62c4786SHajimu UMEMOTO res_protocolname(int num) { 1132f62c4786SHajimu UMEMOTO static char number[8]; 1133f62c4786SHajimu UMEMOTO struct protoent *pp; 1134f62c4786SHajimu UMEMOTO 1135f62c4786SHajimu UMEMOTO if (protolist == (struct valuelist *)0) 1136f62c4786SHajimu UMEMOTO res_buildprotolist(); 1137f62c4786SHajimu UMEMOTO pp = cgetprotobynumber(num); 1138f62c4786SHajimu UMEMOTO if (pp == 0) { 1139f62c4786SHajimu UMEMOTO (void) sprintf(number, "%d", num); 1140f62c4786SHajimu UMEMOTO return (number); 1141f62c4786SHajimu UMEMOTO } 1142f62c4786SHajimu UMEMOTO return (pp->p_name); 1143f62c4786SHajimu UMEMOTO } 1144f62c4786SHajimu UMEMOTO 1145f62c4786SHajimu UMEMOTO const char * 1146f62c4786SHajimu UMEMOTO res_servicename(u_int16_t port, const char *proto) { /* Host byte order. */ 1147f62c4786SHajimu UMEMOTO static char number[8]; 1148f62c4786SHajimu UMEMOTO struct servent *ss; 1149f62c4786SHajimu UMEMOTO 1150f62c4786SHajimu UMEMOTO if (servicelist == (struct valuelist *)0) 1151f62c4786SHajimu UMEMOTO res_buildservicelist(); 1152f62c4786SHajimu UMEMOTO ss = cgetservbyport(htons(port), proto); 1153f62c4786SHajimu UMEMOTO if (ss == 0) { 1154f62c4786SHajimu UMEMOTO (void) sprintf(number, "%d", port); 1155f62c4786SHajimu UMEMOTO return (number); 1156f62c4786SHajimu UMEMOTO } 1157f62c4786SHajimu UMEMOTO return (ss->s_name); 1158f62c4786SHajimu UMEMOTO } 1159